Cummins/Onan — Change Engine Full-Flow Filter

Maintenance · Lubricating system

From a Cummins/Onan service manual covering: GNH-250, GNH-XI0, GNHC4, GNVH450, GV12, GV12 series, GV12-525. Check it applies to your exact model before use.

Applies to: Cummins/Onan GV12

Procedure

1. Remove drain plug from filter case; drain oil.
2. Loosen center bolt or remove capscrews; remove filter case.
3. Withdraw filter element, inspect, discard.
4. Remove seal ring from filter head; discard.
5. Clean filter case thoroughly.
6. Install new element over pilot and/or valve assembly.
7. Position new seal ring; assemble; tighten center bolt to 30/35 foot-pounds.
8. Check oil level; run engine and check for leaks.

Full service-parts list: Cummins/Onan GV12 →

Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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